Hey guys, season 13 of The Curse of Oak Island continues to push deeper, both literally and historically, into the island’s enigmatic past.
Episode 5 delivers one of a season’s most intriguing combinations of archaeology, speculation, scientific analysis, and emotional reflection as the team grapples with tantalizing clues.
From deep drilling in the Money Pit to astonishing discoveries in the swamp and mysterious stone structures on Lot 5, the episode is a rich blend of discovery and doubt, offering viewers an intense look at the evolving Oak Island mystery.

This episode stands out because it ties together several threads that have been developing for years—medieval artifacts, European engineering, early gunpowder technology, the mystery of the solution channel beneath the Money Pit, and the ongoing possibility that the Knights Templar or other pre-Colombian visitors were active on the island centuries before the Money Pit’s discovery in 1795.
Let’s break down and analyze the key developments.

One: Drilling deep into the Money Pit — chasing the solution channel
The episode opens with Rick and Marty Lagina overseeing a fresh push into the Money Pit.
The team begins drilling borehole G4.5, targeting depths of more than 200 ft in pursuit of a solution channel, a natural void or cavern where some believe the original treasure may have collapsed.

The central theory is compelling: the original vault at 90 ft collapsed, as historical accounts suggest, and repeated collapses over the centuries may have caused treasure or man-made structures to plunge even deeper.
These may have collected in a mudden, water-filled cavern now known as the solution channel.

The early core samples show dense materials rather than the loose, watery muck the team hoped for.
The goal was to hit a soft, unconsolidated zone where treasure could have fallen and rested.
Instead, they encountered rock, rubble, and stubborn compacted soil—frustrating, but not fatal to the theory.

The emotional moment comes when the drill reaches bottom and the team finds no man-made objects—no metal, no coins, no artifacts.
Rick admits disappointment, and Marty notes that while the absence of artifacts stings, the data still supports the existence and shape of the channel.
The underlying optimism remains: the solution channel may still be hiding something; they simply have not intersected the right pocket yet.

Compared to past Money Pit disappointments, this setback feels measured.
The brothers have been through enough ups and downs to know the value of patience, and the geology still suggests something significant could be nearby.

Two: The swamp strikes again — a possible medieval hand cannon
While the Money Pit drilling struggles, the island’s most controversial area—the swamp—delivers yet another baffling discovery.
Last episode, the team found what appeared to be a fragment of a hand cannon, one of the earliest forms of firearm dating as far back as the 12th or 13th century.

In episode 5, the artifact undergoes analysis by Emma Culligan and Laird Niven in the Oak Island lab.
Key findings:
• Metallurgy suggests 1700s or older, ruling out modern ironworking.
• The consistent iron and low impurities point toward early European forging techniques.
• CT scans reveal a touch hole—the defining feature of a medieval hand cannon.
• Maltese military historian Matthew Bolzon confirms it could date from the 1200s–1500s.

This raises explosive questions.
How did such a weapon end up in the Oak Island swamp?
Was it brought by Portuguese explorers, a Templar-connected group, or repurposed as an early rock-breaking tool to build stone features nearby?

Bolzon adds an unexpected twist: early gunpowder weapons were sometimes used as rock-breaking devices.
Considering the nearby 800-year-old stone-paved area, the possibility emerges that whoever built these structures may have used the hand cannon in construction—turning a weapon into a tool.

The swamp continues to defy expectations.
Every time the team tries to dismiss it, the area reveals something older, stranger, and more carefully engineered than the last find.

Three: A corduroy road in the swamp — evidence of ancient transport
Gary Drayton and Billy Gerhardt return to the western swamp, hoping to find companion artifacts to the hand cannon.
What they uncover is one of the episode’s most significant structural discoveries: a potential corduroy road.

Corduroy roads—log roads laid perpendicular to travel direction—were constructed to move heavy loads across marshy terrain.
They date back to medieval Europe and were used extensively to transport goods or even treasure.

The team observes logs with bark peeled off, squared stones, and clay beneath the logs—a clear, deliberate pattern of construction.
The presence of coal mirrors coal found on the Portuguese-style stone road on the opposite side of the swamp, suggesting a possible connection.

If this is indeed a corduroy road, it implies deliberate transport into the swamp.
The construction predates local settlement.
The swamp was not a natural boundary, but a working area engineered for activity.

Gary then finds a large iron buckle—possibly from a chest or cargo strap—and a small iron needle deep in the clay.
Both are old, deliberate, and possibly connected to transport or storage.

The swamp, once dismissed as a natural obstacle, now appears more like the center of intelligent activity.

Four: The mystery deepens on Lot 5 — a stone structure with Templar echoes
If the swamp offers physical artifacts, Lot 5 provides architectural ones.
The team returns to the circular stone feature discovered earlier and begins carefully removing rubble to expose its structure.

Key observations:
• The stones are hand-cut and resemble Portuguese-style construction.
• Charcoal dating from Lot 26’s wall placed activity there as early as 1474.
• The central split stone appears intentionally propped upright.
• The feature is oriented east-west, matching Templar and Masonic traditions.
• The diameter measures 6 ft 72 in—a number connected with Templar symbolism and Nolan’s Cross geometry.

Rick, Marty, and the archaeologists speculate:
Could this be another Templar marker?
Another structural node like Nolan’s Cross?
Even an entrance marker?

While nothing is definitive, the alignment, dimensions, and construction style are too deliberate to dismiss as random.

Lot 5, already home to Roman coins and ancient artifacts, continues to build its case as one of the island’s most historically charged areas.

An emotional interlude
One of the most touching moments comes when Marty finds Rick sitting quietly at Smith’s Cove after disappointing drilling results.
Rick admits discouragement—he had hoped for even a sliver of a coin—but also expresses gratitude.
Their conversation reflects the emotional core of the Oak Island pursuit: mystery, meaning, and legacy.

Episode 5 in summary
Episode 5 contrasts failure and discovery:

• Failure in G4.5: no artifacts, no treasure—just data and disappointment.
• Breakthroughs in the swamp: a medieval weapon, a corduroy road, coal, an iron buckle, and a needle.
• Progress on Lot 5: a stone feature with possible Templar geometry.

The deeper they go beneath the Money Pit, the more surface mysteries multiply.
What if the greatest clues are not 200 ft down, but within the first few feet of soil?

Episode 5 ends with more questions—but also with new possibilities.
The truth may not lie where everyone assumed.
The real treasure may be hidden in plain sight, locked in the stone, soil, and swamp of Oak Island.

A broader perspective
Episode 5 highlights how interdisciplinary the investigation has become: archaeology, metallurgy, geology, imaging, and international expertise come together to reinterpret the island’s past.

Another emerging theme is intentionality.
The structures and artifacts increasingly suggest coordinated human activity—not random settlement.

Even more compelling is the possibility of multiple waves of visitors across different centuries.
The variety of artifacts—from Roman coins to medieval tools to 18th-century items—may represent a timeline rather than a single event.

With the season approaching its midpoint, pressures mount: weather, regulations, resources, and time.
Drilling must succeed soon, and the swamp and Lot 5 demand deeper excavation.

In the end, the episode emphasizes the human side of the quest: perseverance, camaraderie, and the pursuit of a mystery worth chasing—no matter how long it takes.